Homemade Water Feature Can I Use Vegetable Oil As A Coolant For My Homemade Water Cooling System?

Can i use vegetable oil as a coolant for my homemade water cooling system? - homemade water feature

I have my homemade water cooling, but the probs that I use as a refrigerant .. I have no money to buy a refrigerant No expensive .. So I made a .. Reserch say there may be water or vegetable oil .. What do you think?